September 2025 Moonrise, Moonset & Phases in Boulder, United States
Current Time (Local): 03:42:30
Moon Phase: Above horizon
Illumination: 9985.0%
Moon Direction: 268.06° W
Moon Altitude: 32.39°
Moon Distance: 353,623 km
Next Moonrise: Today, 16:47
Next Moonset: N/A
Next New Moon: 19 Nov 2025, 23:47
Next Full Moon: 05 Nov 2025, 06:19
Moonrise, Moonset and Moon Phase Calendar in Boulder, September 2025
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| Sep | Moon | Moonrise/Moonset | Meridian Passing | ||||
|---|---|---|---|---|---|---|---|
| Moonrise | Moonset | Moonrise | Time | Distance (km) | Illumination | ||
| 1 | - |
15:58
↑
(129° SE)
|
20:16
(20.6°)
|
394,863 | 64.2% | ||
| 2 |
00:34
↑
(231° SW)
|
16:48
↑
(128° SE)
|
21:10
(21.6°)
|
390,040 | 73.4% | ||
| 3 |
01:35
↑
(233° SW)
|
17:31
↑
(125° SE)
|
22:04
(24.2°)
|
384,404 | 81.8% | ||
| 4 |
02:43
↑
(237° WSW)
|
18:07
↑
(119° ESE)
|
22:56
(28.3°)
|
378,405 | 89.2% | ||
| 5 |
03:54
↑
(243° WSW)
|
18:37
↑
(112° ESE)
|
23:47
(33.7°)
|
372,550 | 94.9% | ||
| 6 |
05:06
↑
(251° WSW)
|
19:04
↑
(104° ESE)
|
Does not pass meridian
(N/A)
|
N/A | 98.7% | ||
| 7 |
🌕 at 12:08
|
06:19
↑
(260° W)
|
19:29
↑
(96° E)
|
00:36
(40.1°)
|
367,340 | 100.0% | |
| 8 |
07:33
↑
(269° W)
|
19:53
↑
(86° E)
|
01:25
(47.1°)
|
363,204 | 98.7% | ||
| 9 |
08:47
↑
(278° W)
|
20:18
↑
(77° ENE)
|
02:13
(54.3°)
|
360,440 | 94.6% | ||
| 10 |
10:03
↑
(288° WNW)
|
20:46
↑
(69° ENE)
|
03:04
(61.4°)
|
359,174 | 88.0% | ||
| 11 |
11:21
↑
(296° WNW)
|
21:19
↑
(61° ENE)
|
03:57
(67.8°)
|
359,354 | 79.3% | ||
| 12 |
12:39
↑
(302° WNW)
|
22:00
↑
(56° NE)
|
04:53
(73.0°)
|
360,782 | 69.1% | ||
| 13 |
13:54
↑
(307° NW)
|
22:51
↑
(52° NE)
|
05:53
(76.6°)
|
363,170 | 58.0% | ||
| 14 |
🌗 at 04:32
|
15:01
↑
(308° NW)
|
23:51
↑
(52° NE)
|
06:55
(78.3°)
|
366,212 | 46.6% | |
| 15 |
-
|
15:58
↑
(307° NW)
|
07:57
(78.0°)
|
369,644 | 35.6% | ||
| 16 |
00:59
↑
(54° NE)
|
16:42
↑
(303° WNW)
|
08:55
(75.8°)
|
373,281 | 25.5% | ||
| 17 |
02:10
↑
(59° ENE)
|
17:18
↑
(297° WNW)
|
09:50
(72.0°)
|
377,021 | 16.7% | ||
| 18 |
03:21
↑
(65° ENE)
|
17:47
↑
(291° WNW)
|
10:40
(67.1°)
|
380,816 | 9.6% | ||
| 19 |
04:29
↑
(73° ENE)
|
18:11
↑
(283° WNW)
|
11:26
(61.4°)
|
384,637 | 4.4% | ||
| 20 |
05:34
↑
(80° E)
|
18:32
↑
(275° W)
|
12:09
(55.3°)
|
388,438 | 1.2% | ||
| 21 |
🌑 at 13:54
|
06:38
↑
(89° E)
|
18:52
↑
(267° W)
|
12:50
(49.1°)
|
392,131 | 0.0% | |
| 22 |
07:39
↑
(97° E)
|
19:12
↑
(260° W)
|
13:31
(43.0°)
|
395,579 | 0.9% | ||
| 23 |
08:41
↑
(104° ESE)
|
19:33
↑
(252° WSW)
|
14:12
(37.3°)
|
398,593 | 3.6% | ||
| 24 |
09:43
↑
(112° ESE)
|
19:57
↑
(246° WSW)
|
14:54
(32.1°)
|
400,949 | 8.0% | ||
| 25 |
10:46
↑
(118° ESE)
|
20:24
↑
(240° WSW)
|
15:38
(27.6°)
|
402,407 | 13.9% | ||
| 26 |
11:48
↑
(123° ESE)
|
20:57
↑
(235° SW)
|
16:25
(24.1°)
|
402,740 | 21.0% | ||
| 27 |
12:50
↑
(127° SE)
|
21:36
↑
(232° SW)
|
17:14
(21.7°)
|
401,761 | 29.2% | ||
| 28 |
13:48
↑
(129° SE)
|
22:24
↑
(231° SW)
|
18:06
(20.6°)
|
399,362 | 38.2% | ||
| 29 |
🌓 at 17:53
|
14:40
↑
(129° SE)
|
23:20
↑
(232° SW)
|
18:59
(21.0°)
|
395,540 | 47.7% | |
| 30 | - |
15:25
↑
(126° SE)
|
19:52
(22.9°)
|
390,427 | 57.5% | ||
|
* All times are local time for Boulder. Moonrise and moonset times are calculated for the geometric center of the Moon and account for Earth's atmospheric refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon (or local noon if meridian passage is not on this day). The table may show "-" for moonrise or moonset if the event does not occur on that specific local day, or if the Moon is circumpolar (always above or always below the horizon). Two moonrises or moonsets on the same day can occur due to the Moon's orbital motion and the definition of a local day. |
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